R8A77850AADBGV Renesas Electronics America, R8A77850AADBGV Datasheet - Page 673
R8A77850AADBGV
Manufacturer Part Number
R8A77850AADBGV
Description
IC SUPERH MCU 436-BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH7780r
Datasheet
1.R8A77850AADBGV.pdf
(1694 pages)
Specifications of R8A77850AADBGV
Core Processor
SH-4A
Core Size
32-Bit
Speed
600MHz
Connectivity
Audio Codec, MMC, Serial Sound, SCI, SIO, SPI, SSI
Peripherals
DMA, POR, WDT
Number Of I /o
108
Program Memory Type
ROMless
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
1 V ~ 1.2 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
436-BGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
R8A77850AADBGV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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13. PCI Controller (PCIC)
To access the address space in this LSI, use PCIMBAR0/1, PCILSR0/1, and PCILAR0/1. PCI
addresses can be allocated to by software. The PCIC has two types of registers for memory
mapping, Local Address Space 0 (base 0) and Local Address Space 1 (base 1).
By setting these two registers, two types of spaces (bases) can be allocated.
The size of these address spaces are selectable from 1 Mbyte to 512 Mbytes by PCILSR0/1.
Single-longword (32 bits) and burst transfers on the PCI bus are supported for PCI target memory
transfers.
For details of accesses to PCIC internal registers (PCI configuration registers and PCI local
registers), see after-mentioned description for configuration access and access to I/O space.
A certain range of the address space on the PCI bus corresponds to the local address space in the
internal bus address space. The local address space 0 in this LSI is controlled by PCIMBAR0,
PCILSR0 and PCILAR0. The local address space 1 is controlled by PCIMBAR1, PCILSR1 and
PCILAR1. Figure 13.11 shows the address translation from the PCI bus to the SuperHyway bus in
this LSI.
PCIMBAR indicates the start address of the PCI bus memory space used by an external PCI
device. PCILAR indicates the start address of the local address space for this LSI. PCILSR
indicates the size of the address space used by an external PCI device.
For PCIMBAR and PCILAR, the upper address bits that are higher than the memory size set in
PCILSR becomes valid. The upper bits in PCIMBAR and the PCI address output from an external
PCI device are compared to determine whether the PCIC is accessed. If these addresses match, an
access to the PCIC is recognized, and a local address is generated from the upper bits in PCILAR
and the lower bits of the PCI address output from the external PCI device. A PCI command
(memory read/write) is executed for this address. If the upper bits of the PCI address output from
the external PCI device does not match the upper bits of PCIMBAR, the PCIC does not respond to
a PCI command.
The PCIC supports data prefetching for a memory read command. When burst read is performed
on the PCI bus, data is prefetched in block units of 8 bytes or 32 bytes (set by PCICR.PFCS and
PCICR.PFE).
When all the MBARE bits in PCILSR0/1 are 0, a PCI bus address is transferred to the internal bus
without translation.
Rev.1.00 Jan. 10, 2008 Page 641 of 1658
REJ09B0261-0100
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